Polished bright surface 316 Stainless Steel Round Bar
Short Description:
316 Stainless Steel Round Bar is a molybdenum-bearing austenitic stainless steel bar supplied with bright, polished, peeled, ground and other precision surface conditions. SAKY STEEL provides 316 / UNS S31600 round bars in custom diameters, lengths and tolerances for shafts, fasteners, machining, marine, chemical and precision engineering applications.
316 Stainless Steel Round Bar Overview
316 Stainless Steel Round Bar is a molybdenum-bearing austenitic stainless steel bar offering good corrosion resistance for marine, chemical, food-processing, pharmaceutical and general engineering applications.
This product page focuses on 316 round bars supplied with bright, polished, ground, peeled and other precision surface conditions. SAKY STEEL can supply customized diameters, lengths, tolerances and downstream processing according to the required application.
316 Round Bar Quick Information
Grade: 316 / UNS S31600
Reference Standards: ASTM A276 / ASTM A479
Product Form: Stainless Steel Round Bar
Surface: Bright / Polished / Ground / Peeled / Turned
Production: Cold Drawn / Hot Rolled / Forged
Length: Standard Length / Cut Length / Customized
Tolerance: H9 / H11 / H13 / K9 / K11 / K13 or Agreed Requirement
Documentation: MTC / Dimensional Inspection / Third-Party Testing as Required
316 Stainless Steel Bright Round Bar Product Show
The following original product video shows representative stainless steel bright round bar surface and product condition.
316 Stainless Steel Round Bar Specifications
| Item | Specification |
|---|---|
| Grade | 316 / UNS S31600 |
| Reference Standards | ASTM A276 / ASTM A479 and Agreed Customer Specification |
| Technology | Cold Drawn / Hot Rolled / Forged |
| Diameter | Custom Diameter According to Production Route and Requirement |
| Length | 5800 / 6000 mm / Fixed Length / Cut-to-Size |
| Surface Finish | Bright / Polished / Ground / Peeled / Turned / Pickled |
| Tolerance | H9 / H11 / H13 / K9 / K11 / K13 or Agreed Requirement |
| Processing | Saw Cutting / Grinding / Polishing / Turning / Machining |
Bright, Polished & Ground 316 Round Bar
| Surface | Characteristic | Typical Use |
|---|---|---|
| Bright | Clean cold-finished surface with improved dimensional consistency | Fasteners, shafts and precision components |
| Polished | Refined surface for improved appearance and smoothness | Food, pharmaceutical and decorative components |
| Ground | Precision-ground diameter and consistent surface | Shafts and precision machining |
| Peeled / Turned | Outer scale and surface imperfections mechanically removed | Machining stock and larger-diameter bars |
316 Series Stainless Steel Bar Grade Reference
| Grade | Werkstoff | UNS | JIS | EN |
|---|---|---|---|---|
| 316 | 1.4401 / 1.4436 | S31600 | SUS 316 | X5CrNiMo17-12-2 / X3CrNiMo17-13-3 |
| 316L | 1.4404 / 1.4435 | S31603 | SUS 316L | X2CrNiMo17-12-2 / X2CrNiMo18-14-3 |
| 316H | 1.4401 | S31609 | SUS 316H | High-carbon 316 variant |
| 316Ti | 1.4571 | S31635 | SUS 316Ti | X6CrNiMoTi17-12-2 |
316 Stainless Steel Chemical Composition
| Grade | C | Mn | Si | P | S | Cr | Ni | Mo |
|---|---|---|---|---|---|---|---|---|
| 316 | ≤0.08 | ≤2.00 | ≤1.00 | ≤0.045 | ≤0.030 | 16.00–18.00 | 10.00–14.00 | 2.00–3.00 |
Chemical composition should be confirmed against the applicable product standard and the batch-specific material certificate.
Typical 316 Stainless Steel Mechanical Properties
| Property | Reference Value |
|---|---|
| Density | Approx. 8.0 g/cm³ |
| Tensile Strength | Approx. 515 MPa minimum reference |
| Yield Strength | Approx. 205 MPa minimum reference |
| Elongation | Approx. 35% reference |
Mechanical-property requirements vary with bar diameter, production condition and applicable specification.
Precision Diameter & Surface Processing
| Cold Drawing
Improved dimensional control |
Centerless Grinding
Precision diameter preparation |
Polishing
Smooth decorative surface |
Cut-to-Length
Fixed machining blanks |
316 Round Bar Inspection & Quality Control
| Inspection Item | Purpose |
|---|---|
| Dimensional Inspection | Diameter, tolerance, straightness and length verification |
| Chemical Analysis | Verify grade chemistry and material traceability |
| Tensile Test | Tensile strength, yield strength and elongation |
| Hardness | Mechanical-condition verification when required |
| UT / PT / PMI | Additional inspection according to order requirements |
| Corrosion Testing | Available when specified by applicable standard or project requirement |
TÜV Rheinland 316 Stainless Steel Bar Test Report
An independent tensile test was performed by TÜV Rheinland (Shanghai) Co., Ltd. on an actual 316 stainless steel bar sample supplied by SAKY STEEL. The report provides batch-specific third-party verification of tensile properties.
| Test Report No. | 01 220 CHN/T-2603386 |
|---|---|
| Sample | Stainless Steel Bar |
| Material | 316 |
| Testing Period | June 15–22, 2026 |
| Test Method | ASTM A370-24a Control Method C |
Actual TÜV Tensile Test Results
| Test Item | Actual Result |
|---|---|
| Tensile Strength | 630 MPa |
| Yield Strength (0.2% Offset) | 386 MPa |
| Elongation After Fracture | 55% (Gauge Length G = 50 mm) |
| Reduction of Area | 76% |
Third-Party Verification
The results above apply to the tested 316 stainless steel bar sample. Future production batches should be verified against their corresponding MTC or third-party inspection report.
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The three pages above show the actual TÜV Rheinland test report, sample information and tensile-test results.
Applications of 316 Bright & Polished Round Bar
| Shafts
Precision rotating components |
Fasteners
Bolts, studs and machined parts |
Marine Equipment
Corrosion-resistant components |
| Chemical Equipment
Process components |
Food & Pharmaceutical
Smooth-finish stainless parts |
Precision Machining
CNC turned components |
316 Stainless Steel Round Bar Packaging
Packaging is selected according to bar diameter, length, surface finish and transportation requirements. Bright, polished and ground bars require suitable protection to reduce scratching and contamination during international shipment.
Related 316 / 316L Stainless Steel Round Bar
For broader information about standard 316 and 316L bar grades, sizes and applications, see our 316 / 316L Stainless Steel Round Bar product page.
Frequently Asked Questions
What is a bright 316 stainless steel round bar?
A bright bar is a stainless steel bar supplied with a relatively clean and smooth processed surface compared with a conventional hot-rolled black bar.
What is the difference between bright and polished round bar?
Bright describes a processed bar surface commonly produced by drawing, peeling or related finishing, while polishing is an additional surface-finishing operation used to improve smoothness and appearance.
Can 316 round bar be centerless ground?
Yes. Centerless grinding can be reviewed for applications requiring tighter diameter control and a consistent finished surface.
Can custom diameters and tolerances be supplied?
Yes. Diameter, tolerance, straightness, finished length and surface condition can be reviewed according to production route and machining requirements.
Do you provide third-party test reports?
Yes. Third-party testing can be coordinated when required. The TÜV Rheinland report shown on this page is an actual tensile-test record for a tested 316 stainless steel bar sample.
Request a 316 Stainless Steel Round Bar Quote
Send your required diameter, length, tolerance, surface finish, quantity and inspection requirements. SAKY STEEL will review the material and processing requirements before confirming the offer.
